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The Maryland Department of the Environment is located at 1800 Washington Blvd., Baltimore, MD 21230. Its primary number is 410-537-3000.  For emergency situations or to report a pollution incident, please refer to the Emergency Numbers.  For contact information, please refer to the Numbers to KnowCustomer Service DirectoryMDE Locations, and other resources listed on the left and right columns of this page, or email webmaster@mde.state.md.us.  

MDE welcomes your comments and suggestions.  If you have comments, suggestions or questions about concerns related to MDE programs and activities, environmental issues, or on Maryland environmental regulations and permits, you may send an email to webmaster@mde.state.md.us.


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